$4\int\frac{x}{\sqrt{1+x^2}}dx$

$\left(a^2+2b^2\right)^2-\left(a^2-2b^2\right)^2$

$2x^2+3y^2+5z^2=900$

$\frac{dy}{dx}\left(\frac{-1}{10}\right)\sqrt{y}$

$\frac{2a+b^2}{4}\:when\:a\:=\:-2\:and\:=\:-4$

$3+7w-1+7w-2+w$

$\frac{dy}{dx}\left(y=tan\left(1+sin\left(5x+1\right)^2\right)\right)$